Key lock



Feb. 28, 1928. 1,660,577

' L. s. REPPELL.

KEY LOCK Filed March 14, 1927 I r .5 25 as l 26 b) INVENTOR.

2/ A BY 7/7e\s.r.'

,1 A ITORNEY.

Patented Feb. 2a, 1928. f

n ares LAWRENCE e. nnrrnnnfon KAnsAs CITY, MISSOURI. j

KEY LOCK.

Application filed. March 14, 1927. Serial No. 175,109..

provide a novel key lock adapted to be at tached to door and to releasabl en a e a key, which is in the lock of the door, to hold the .key from being turned to the unlocked position by anyone at the outer side of the door.

A further objectof my invention is to provide' a. novel key lock of the kind described, which is simple, cheap, portable, durable, not liable to get out of order, and which will efliciently perform the function for which it is designed; I

The novel 1 hereinafter fully described and claimed.

' ordinary fiat shank key 2.

.In the accompanying drawing which illustrates the preferred embodiment of my invention, 1

Fig. 1 is an'inside elevation ofa portion of a door to which is attached one of my improved key looks, a portion of the shank of the key being broken away, the .parts being in the lockingpositions.

r Fig. 2 is an edge elevation. of the same.

.Fig. 3 is a View, enlarged, partly in elevation and partly'in vertical section of my improved key lock, the frontplate of the support being'removed, and the securing member shown in section. V v

4 is a. section on the plane of the line 4-4of Fig. 3. V

Fig. 5 is a cross section on'the plane of the line 5-5 of Fig. 3.

Fig. 6 is an enlarged perspective view of the rotary key engaging member.

Fig. 7 is a front view of the cover plate.

Similar characters of reference designate similar parts in the different views.

1 designates a door having in its lock an For holding the .key 2 from being turned from the locked position by a person at the outer side of the door, my improved key lock provides a support comprising a member 3 having a depending shank and provided at its upper end with a ringlike portion 4t having a trans verse slot 5 in its lower portion, anda front plate 6 fastened to said ringlike portion 4 by pins 7, preferably integral with the portion 4; and having a hole 8 therethrough which registers with a similar hole 9 in the portion 4, the shank of the key 2 being adapted to be extended through the holes 8 and 9 and through a peripheral notch 10 in features of my invention are at the outer side of the door I.

a circular rotary member 11 mounted in a circular recess 12 in the portion 4, andat' the rearjuof the plate 6. The latter has slot 5 V registering with the slot 5.

The rotary; member 11-h's a perlpheral and Circumferential groove 13 one end of which terminates at thenotch 10, and the other-end of which terminates at a wall 14, Figs. 3, 4 and-5.

In the portion 4.. above the recess 12 isa I recess'15, which is covered by .theplate 6,

and which is connected byagroove 16 with the recess 12. :In the groove 16 is 'recipro-.

catively mounted a 'locking member 17, Fig;

3, whichis pivoted *bya pin 18 to anoperat-I ing lever 19, which is pivot'ally.mounted' on" a pin 20 in therecess15, the endof the lever- 19 which is distant from'the locking member 17, being extended through. a groove v 21,

which extends from the recess 15 to the outer side of the portion 4:. In the recess 15 is a spring '22 which bearsflagainstlthe lever '19, i so as to cause the latter to normally forcethe lockingpmember 17 into thexrecess 12, and

.16 registerswith the notchlO. In the position shown in Fig. .3, with the lockingrnember 17 entering the notchv 10., the

eo into the notch 10 when the rotary member is disposed as shown inFig. 3-, and the groove wise, so that the key 2 is held from being ing a hook 24, and the shank'having a longitudinal slot 25 which extends into the hook portion 24, Fig. 4. The shank 3 is slidably mounted in the slot 25, and is provided at its lower end with a spherical portion 26, of too large a diameter to permit it to pass through the slot 25. When the device is freedfrom the key 2, them'ember 3 may be-swung to a the notch 10 registers with theslot 5, and the shank of the key 2can' pass out of the notch 10' through the slot 5.v To efl'ect this, the

shank 3 is slid upwardly in'the slot 25 to the position shown'in dotted lines in Fig. 3, and

i v the notch being in register with the slot 5,

To unlock thedoor,the lever 19 is pushed downwardly at its upper outer end, against the pressure of the spring 22, so as to move the locking member 17 out of thenot'ch 10, upon which the key and rotary member 11 -may be turnedcounterclockwise, until the looking member, traveling in the'circumt'erential groove-13, strikes the wall 14, thus stopping the movement of the rotary member, with the notohlO registering with the slot-5. 1

It will be noted that in the inner'wall of the groove 13 the member 11 is provided with teeth 27, Figs, 3 and 6, which are adaptedto be engaged by thelocking member 17, and which are adjacent to the notch 10. These teeth are provided to' permit the lock ing member 17 holding the key 2 from turniing from a partly locked position, in cases where, due to sagging of the door, or for some other reason, the bolt of the look: can not be forced to the normal fully locked position, and the rotary member 11 cannot be turned'by the key" to a position in which the notch 10 will receive the locking member 17. i I'do not limit my invention to the structure shownand described, as many modifications of my invention, within the scope of the v appended claims, may be made without departing from the spirit of my invention.

What I claim is or 1. In akeyjlock, a support having a'ring like portion provided with a transverse slot for the passage of a key shank, a member rotatable in sand portion having a peripheral notch for receiving said shank, said member being revoluble to and from a position in which said notch w ll register with said slot,

alocking member movable on said support into and out of said notch when the rotary member is turned by the key shank to the locking position of the key and the notch is out of register with said slot, the key being in an unlocked position when the slot and notch are in register, a lever on said support engaging and arranged to move said locking member to and from the locking position, and a spring for normally forcing said lever to move said locking member to the locking. position. 1 i

2. In a key look, a support having aringlike portion, provided with a transverse slot for the passage of akey shank, a member'rotatabl'e in said portion having'a peripheral notch for receiving said shank,-and having a peripheral groove terminating at one end at said notch and having at-its'otherend a wall, said member being rotatable to and;

from a position inwhich said notch will,

register'with said slot, a locking member movable on said support-into and-out of said notch when said-rotary member is turned by said shank to the locking position of the key and the notch is out of register with said slot, the key being in an unlocked position when the slot and notclrare in register, saidlocking member being adapted to enter said groove and to contact with said wall to limit the retracting'movement of the rotary member when the latter is turned to the position in which the slot and notch register, and a lever engaging said locking member for moving the latter to and from the locking vposition. I

' In testimony'whereof I have name to this specification.

LAWRENCEG. REPPELL.

signed my 

